Sundance: James Sweeney levels up with this confident and extremely clever story about two boys who meet in a support group for siblings who've lost a twin.

I hope that is not the fate of Twinless, a singular, beguiling film. Writer-director James Sweeney, who also co-stars, does trade in some of the stereotypical quirk and tic of Park City ephemera. But he deftly stitches those fabrics into something new,

In James Sweeney's sophomore feature 'Twinless', he navigates loneliness, anxiety, depression and other common millennial pastimes.

In James Sweeney's second feature, which also stars Lauren Graham, Aisling Franciosi and Chris Perfetti, two young men at a grief support group form an unlikely friendship.

Dylan O'Brien and James Sweeney star in Sweeney's diabolical dark comedy "Twinless," about two men who meet in a twin bereavement group.

Fifteen minutes before the world premiere of "Twinless," a dark comedy that sees "The Maze Runner" star playing a character who is grieving the loss of his twin brother, the actor was practically giddy as he talked about the film.

Warning: This story contains mild spoilers for “Twinless,” which premiered on Thursday at Sundance Film Festival.] Dylan O’Brien reveled in the process of playing dual roles in “Twinless,” a twisted comedic drama about two friends who meet in a support group for people who lost a twin.